实现方式1:
protected void DownLoad_Click(object sender, EventArgs e) { //获取要下载的文件 string filename = Server.MapPath("~/upload/计算机科学与技术.rar"); FileInfo f = new FileInfo(filename); //设置文件头 Response.ContentType = "application/zip"; //对文件名进行编码处理,并设置保存时的默认文件名 Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(f.Name, System.Text.Encoding.UTF8)); //输出文件 Response.TransmitFile(filename); }效果:
实现方式2:
protected void DownLoad_Click(object sender, EventArgs e) { //获取要下载的文件 string file = Server.MapPath("~/upload/DesignPattern.rar"); FileInfo f = new FileInfo(file); //清空缓冲区内容 Response.Clear(); //设置文件头 Response.AddHeader("Content-Disposition", "attachment;filename="+HttpUtility.UrlDecode(f.Name,System.Text.Encoding.UTF8)); Response.AddHeader("Content-Length", f.Length.ToString()); Response.AddHeader("Content-Transfer-Encoding", "binary"); Response.ContentType = "application/zip"; Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); Response.WriteFile(f.FullName); Response.End(); } 下载中文名文件时存在问题. 效果: 实现方式3: protected void DownLoad_Click(object sender, EventArgs e) { //获取要下载的文件,并将数据读入数组 string filepath = Server.MapPath("~/upload/DesignPattern.rar"); FileInfo fi = new FileInfo(filepath); FileStream fs = new FileStream(filepath, FileMode.Open); int filelength = (int)fs.Length; byte[] bt = new byte[filelength]; fs.Read(bt, 0, filelength); fs.Close(); //设置文件头及保存时的文件名 Response.ContentType = "application/zip"; Response.AddHeader("Content-Disposition","attachment;filename="+HttpUtility.UrlDecode(fi.Name,System.Text.Encoding.UTF8)); Response.AddHeader("Content-Length", filelength.ToString()); //输出文件 Response.BinaryWrite(bt); Response.Flush(); Response.End(); } 下载中文名文件时存在问题. 效果: 实现方式4: protected void DownLoad_Click(object sender, EventArgs e) { string filepath = Server.MapPath("~/upload/DesignPattern.rar"); FileStream fs = new FileStream(filepath, FileMode.Open); int filelength = (int)fs.Length; byte[] b = new byte[filelength]; fs.Read(b, 0, filelength); fs.Close(); Response.ContentType = "application/zip"; Response.AddHeader("Content-Disposition", "attachment;filename=1.rar"); Response.AddHeader("Content-Length", filelength.ToString()); Response.OutputStream.Write(b, 0, filelength); Response.OutputStream.Close(); Response.Flush(); Response.Close(); }实现方式5:
protected void DownLoad_Click(object sender, EventArgs e) { //鑾峰彇瑕佷笅杞界殑鏂囦欢,骞跺皢鏁版嵁璇诲叆鏁扮粍 string filepath = Server.MapPath("~/upload/aspnetmvc-stepbystep.rar"); FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read, FileShare.Read); long filelength = fs.Length; int readsize = 102400; byte[] b = new byte[readsize]; Response.ContentType = "application/octet-stream"; Response.AddHeader("Content-Disposition", "attachment;filename=1.rar"); Response.AddHeader("Content-Length", filelength.ToString()); while (filelength > 0 && Response.IsClientConnected) { int receive = fs.Read(b, 0, readsize); Response.OutputStream.Write(b, 0, receive); Response.Flush(); b = new byte[readsize]; filelength = filelength - receive; } fs.Close(); Response.OutputStream.Close(); Response.Close(); } 注意: Response.AppendHeader("content-disposition", "attachment;filename=" + filename);//附件下载 Response.AppendHeader("content-disposition", "online;filename=" + filename);//在线打开转载于:https://www.cnblogs.com/oneword/archive/2009/07/02/1515184.html
